仪表图例
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MANUALLY OPERATED VALVES
By adding an actuator to the basic valve symbol ,the valve
becomes a control valve .
V-1V-2V-3V-4 Gate valve闸阀 Globe valve球形阀 Check valve止回阀Ball valve球阀V-5 Plug valve阻塞阀 Hand controlvalve手动控制阀V-7 Butterfly valve or
damper 蝶阀或节气闸V-8 Stop check valve断流止回阀Ram valve冲击阀Blowdown valve吹扫阀Diaphragm valve薄膜阀Angle valve角阀Three way valve三通阀Four way valve四通阀Disc valve隔膜阀Needle valve针阀Slide valve滑阀 Other valves
Indicated proper abbreviation under valve, example
2-6″-WB-134-J1B7-FHC-1．5″
UNIT NUMBER单元编号
LINE SIZE管线尺寸
SERVICE SYMBOL用途符号
LINE NUMBER管线编号
PIPING SERVICE SPECIFICATION管道用途描述
TYPE OF INSULATION OR TRACING绝缘类型或保温
LINE INSULATION THICKNESS管道保温厚度
INSULATION CODE保温代号
FCC Full cold conservation完全保持冷却 FHC Full heat conservation完全保持伴热
PHC Partial heat conservation局部保持伴热
PP Personnel protection个人防护
NI No insulation无保温
ST Steam traced and insulated蒸汽伴热
ET Electric traced and insulated电伴热
INSTRUMENT NUMBERING PHILOSOPHY
X--XX--XXX—X
Multiple instrument designator多种仪表指示
Loop number/Intrument tag回路编号或仪表位号
Section number/Intrument code区域编号或仪表代号
Train number顺序编号
PIPING SYMBOLS管道符号
silencer消音器filter过滤器 Open funnel敞口漏斗Open drain敞口排放DR Closed drain funnel密闭排放漏斗E-1E-2slope Downword slope下斜othersgePipe specification
limit管线规格界限 Strainghtening vane矫正器具Spectacle blind install
donut in line管道上安装的开位置肓板
E-5E-4 Pipe size reduction管径尺寸缩小Spectacle blind install
donut in line管道上安装的关位置肓板 Flame arrester
防火装置
SSTE1XXXX Hose connection软管连接 Temporary strainer临时过滤器 Basket strainer篮式过滤器 Y-type strainer
Y型过滤器 Expansion joint
膨胀接合处 HHamer Blind肓板 Sample Connection取样连接Steam Trap 蒸汽汽水阀Piping Engineered Item管道工程单位 Steam Desuperheater蒸汽减温器
GENERAL概述
Vortex breaker
涡流断路器Grade 平面Packed Section
整个区域Mesh-Type Mist
Eliminator 网状除雾器Note Reference Symbol
注释参照符号Horizontial Vane-Type
Mist Eliminator
水平叶片型除雾器
LINE SYMBOLS管道符号
Primary Process Line
主工艺管道Secondary Process Line次工艺管道Jacketed Pipe 套管Existing OR Future Line现有或将有的管道Flexible Host 柔性软管Underground Line
地下管道Instrument Pneumatic
Line仪表气源管线 Instrument Capillary
Tubing仪表毛细管Hydraulic Signal
水压信号Electromagnetic,Sonic,,Optical Or Radioactive
Signal电磁、声波、光学或辐射信号Heat Traced Line
伴热管线Electrical Signal
电信号Internal
Signal(software or data
link) 内部信号（软件或数据连接）
ABBRIVATIONS缩写 AG—Above Ground 地面 HP—Horse Power Or Highpressor马达或高压
ATM—Atmosphere 大气 H.PT—High Point 高点
BF—Blind Flange 肓法兰 IAC—Insulation Acoustic隔音
BHP—Brake Horse Power马达闸 LC—Lock Closed 锁定关
BL—Battery Limit 电池限额 LO—Lock Open 锁定开
BW—Backwash 逆流 LH—Lock Hopper 锁斗
CC—Chemical Clean化学清洗 LP—Low Pressure 低压
CH OP—Chain Operated连续运转 L,PT—Low Point 低点
CP—Corrosion Probe 防腐蚀探测器
M—Motor Or Motorized Actuator电动机或电动执行器
CSC—Car Seal Closed 气缸密封关 MW—Manway人行道
CSC—Car Seal Open 气缸密封开 NC—Normally Closed常闭
D—Drain 排放 NDE—Normally Deenergized正常不带电
DE—Deenergized 不带电 NE—Normally Energized正常带电
E—Energized 带电 NNF—Normally No Flow正常无流量
(E)—Existing 当前的 NO—Normally Open常开
(F)—Furnished 供应 PD—Positive Displacement实际置换
F＆P--Furnished＆piped供应或管道传输 PV—Process Variable进程变量
FC—Fail Closed 故障关 S—Sample Connection取样连接
FI—Fail Indeterminate 不确定故障 SP.GR.—Specific Gravity特殊引力
FL—Fail Locked 故障锁定 SO—Steam Out蒸汽排出
FO—Fail Open Or First Out故障开或首次输出
SOV—Solenoid Operated Valve电磁阀
FOB—Flat On Bottom 底部平面 SP—Set Point设定点
FOT—Flat On Top 顶部平面 SR—Stress Relieve减压
FP—Full Port 整个端口 ST—Steam Trap蒸汽汽水阀
FV—Full Vacuum 完全真空 TSO—Tight Shut-off完全切断
GE—General Electric Gasification Process常规电气化程序
GO—Gear Operated 齿轮传动 T/T—Tangent To Tangent相互接触
HH—Hand hole 人孔 UG—Underground地下的
HS-=-Hydraulic Supply 供水 V—Vent出口
VV—Vent Valve 排放阀 VB—Vortex Breaker涡流断路器
VP—Vee Port V型端口
Commodity codes通常代码
Air 空气 LN—Low Presure Nitrogen低压氮气
BD—Blow Down 吹扫 LS—Low Presure Steam低压蒸汽
BF—Bioler Feed Water 锅炉给水 LWS—Limestone Water Supply灰水给水
BW—Black Water 黑水 MN—Medium Presure Nitrogen中压氮气
CW—Cooling Water Supply 冷却给水 MS—Medium Presure Steam中压蒸汽
CWR—Cooling Water Return 冷却水循环 NG—Natural Gas大气
